/*!	 state_fill.cpp
**	 Template File
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#include <synfig/general.h>

#include "state_fill.h"
#include "state_normal.h"
#include "workarea.h"
#include <synfig/context.h>
#include "app.h"
#include "dialogs/dialog_color.h"
#include "event_mouse.h"
#include "event_layerclick.h"
#include "docks/dock_toolbox.h"
#include "canvasview.h"
#include <synfigapp/main.h>

#include <gui/localization.h>

#endif

using namespace std;
using namespace etl;
using namespace synfig;
using namespace studio;

class studio::StateFill_Context
{
    CanvasView *canvas_view;
    CanvasView::IsWorking is_working;

    WorkArea::PushState push_state;

public:
    StateFill_Context(CanvasView *canvas_view);
    ~StateFill_Context();

    Smach::event_result event_stop_handler(const Smach::event& x);

    Smach::event_result event_refresh_handler(const Smach::event& x);

    Smach::event_result event_workarea_layer_clicked_handler(const Smach::event& x);

    etl::handle<CanvasView> get_canvas_view()const
    {
        return canvas_view;
    }
    etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const
    {
        return canvas_view->canvas_interface();
    }
    synfig::Canvas::Handle get_canvas()const
    {
        return canvas_view->get_canvas();
    }
    WorkArea * get_work_area()const
    {
        return canvas_view->get_work_area();
    }

}; // END of class StateFill_Context

StateFill studio::state_fill;

StateFill::StateFill():
    Smach::state<StateFill_Context>("fill")
{
    insert(event_def(EVENT_LAYER_SELECTION_CHANGED, &StateFill_Context::event_stop_handler));
    insert(event_def(EVENT_STOP, &StateFill_Context::event_stop_handler));
    insert(event_def(EVENT_REFRESH, &StateFill_Context::event_refresh_handler));
    insert(event_def(EVENT_WORKAREA_LAYER_CLICKED, &StateFill_Context::event_workarea_layer_clicked_handler));
}

StateFill::~StateFill()
{
}

StateFill_Context::StateFill_Context(CanvasView *canvas_view):
    canvas_view(canvas_view),
    is_working(*canvas_view),
    push_state(get_work_area())
{
    synfig::info("Entered Fill State");

    // Disable duck and bezier clicking
    get_work_area()->set_allow_duck_clicks(false);
    get_work_area()->set_allow_bezier_clicks(false);

    // Hide all ducks
    get_work_area()->set_type_mask(Duck::TYPE_NONE);
    get_canvas_view()->toggle_duck_mask(Duck::TYPE_NONE);

    canvas_view->get_work_area()->set_cursor(Gdk::CROSSHAIR);

    App::dock_toolbox->refresh();
}

StateFill_Context::~StateFill_Context()
{
    synfig::info("Left Fill State");
    canvas_view->get_work_area()->reset_cursor();
    App::dock_toolbox->refresh();
}

Smach::event_result
StateFill_Context::event_stop_handler(const Smach::event& /*x*/)
{
    synfig::info("STATE FILL: Received Stop Event");
    throw &state_normal;
    return Smach::RESULT_OK;
}

Smach::event_result
StateFill_Context::event_refresh_handler(const Smach::event& /*x*/)
{
    synfig::info("STATE FILL: Received Refresh Event");
    canvas_view->get_work_area()->queue_render_preview();
    return Smach::RESULT_ACCEPT;
}

Smach::event_result
StateFill_Context::event_workarea_layer_clicked_handler(const Smach::event& x)
{
    synfig::info("STATE FILL: Received layer clicked Event");
    const EventLayerClick& event(*reinterpret_cast<const EventLayerClick*>(&x));

    if (!event.layer) {
        get_canvas_view()->get_ui_interface()->warning(_("No layer here"));
        return Smach::RESULT_ACCEPT;
    }

    synfigapp::ValueDesc value_desc(event.layer, "color");

    if (!get_canvas_interface()->change_value(value_desc, ValueBase(synfigapp::Main::get_fill_color()))) {
        get_canvas_view()->get_ui_interface()->warning(_("Unable to set layer color"));
        return Smach::RESULT_ERROR;
    }

    return Smach::RESULT_ACCEPT;
}